Definition

Mild cognitive impairment–amnestic type (MCI-AT) is mild, repeated memory loss. It lies between the normal memory loss of aging and the more serious conditions of
dementia
and
Alzheimer’s disease (AD)
. MCI-AT only involves problems with memory. Dementia and Alzheimer's involve loss of other cognitive abilities, such as:

Learning

Reasoning

Making decisions

Problems with confusion, language, and attention

People with MCI-AT who are over age 65 have a higher chance of developing dementia and Alzheimer's. However, many people with MCI-AT never develop these disorders. Some even revert to normal.